In cell culture biology, confluence is the term commonly used as an estimate of the number of adherent cells in a culture dish or a flask, referring to the proportion of the surface which is covered by cells.or example, 50 percent confluence means roughly half of the surface is covered and there is still room for cells to grow. 100 percent confluence means the surface is completely covered by the cells, and no more room is left for the cells to grow as a monolayer.
One of the few external rigid points on the GZ-20âs envelope, it holds the battens, attachments for the nose lines and the mooring spindle. 2. Material. The largest component of the Blimp, the GZ-20âs envelope is made of two-ply, neoprene-impregnated polyester fabric. 3. Ballonet. Located in the forward and aft of the envelope, these air bags allow the pilot to regulate the amount of helium in the Blimp and statically trim the ship in a nose-up or nose-down situation.
Promogroup supply three types of blimps: Standard blimp - 12ft x 6ft with 8 Sq feet of advertising on each side. Aerostat - 36ft x 13ft with 144 Sq feet of advertising on each side. Airship - 30ft x 8ft with 137 Sq feet of advertising on each side. The blimp can be used as both an advertising and navigational tool. Flying up to a hight of 200 ft will allow the public to see the advertising from a great distance.